Comment 14 for bug 932088

Sorry for delays with responses. The story on our side was that we implemented auto-retries for failed apt-get invocations in our scripts with exponential back-off on 2012-03-06, and that "fixed" it for us, at least I never saw slaves failed to launch. Soon after that we were swamped into other urgent issue, and I didn't even have time to analyze the logs to see what helped most - auto-retries or fixes you did to the mirror.

I'm back to it now, analyzing logs, and will follow up with more info soon. Thanks!